JavaScript如何从值中删除数组中的项目？

如果不允许添加到本机原型，则可以是全局函数或自定义对象的方法。它从数组中删除与任何参数匹配的所有项目。

Array.prototype.remove = function() {    var what, a = arguments, L = a.length, ax;    while (L && this.length) {        what = a[--L];        while ((ax = this.indexOf(what)) !== -1) { this.splice(ax, 1);        }    }    return this;};var ary = ['three', 'seven', 'eleven'];ary.remove('seven');

为了使其成为全球性的

function removeA(arr) {    var what, a = arguments, L = a.length, ax;    while (L > 1 && arr.length) {        what = a[--L];        while ((ax= arr.indexOf(what)) !== -1) { arr.splice(ax, 1);        }    }    return arr;}var ary = ['three', 'seven', 'eleven'];removeA(ary, 'seven');

并照顾IE8及以下版本-

if(!Array.prototype.indexOf) {    Array.prototype.indexOf = function(what, i) {        i = i || 0;        var L = this.length;        while (i < L) { if(this[i] === what) return i; ++i;        }        return -1;    };}